ccf-skill-forger

ccf-skill-forger is a skill for Claude Code, Codex from mikubaka88/CCFA-Skills. It costs 57 tokens per session (1,374 once invoked), scanned A, original, MIT.

A maintenance skill for creating, updating, checking, and documenting Codex or CCFA skills. It also manages their trigger wording, supporting files, and shared rules.

In plain words
What is it for?
Use it to build new skills, revise existing ones, resolve overlapping triggers, maintain Markdown or SVG documentation, and run release checks.
Why use it?
It helps keep related skills consistent, private, correctly routed, and ready for release.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present. Also seen: mentions Codex.

Part of the ccfa-skills plugin — 17 skills shipped together

Good fit Use it to build new skills, revise existing ones, resolve overlapping triggers, maintain Markdown or SVG documentation, and run release checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mikubaka88/ccfa-skills/ccf-skill-forger
About the project

CCFA Skills is a family of agent skills that helps researchers develop the storyline and presentation of CCF-A research papers. It supports work across research ideas, literature, experiments, writing, figures, reviews, rebuttals, and submission while keeping the argument connected. The catalogue entry consists of the project's research-writing skills and plugin.

mikubaka88/CCFA-Skills · 2,395 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add mikubaka88/CCFA-Skills --skill ccf-skill-forger
Clone the repo
git clone --depth 1 https://github.com/mikubaka88/CCFA-Skills

Made for: Claude Code, Codex.

Or install ccfa-skills, the plugin that ships this one along with the rest of its 17 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ccf-skill-forger

README.md
[![agentmods](https://agentmods.dev/badge/skills/mikubaka88/ccfa-skills/ccf-skill-forger/github.svg)](https://agentmods.dev/skills/mikubaka88/ccfa-skills/ccf-skill-forger)
Your own site
<a href="https://agentmods.dev/skills/mikubaka88/ccfa-skills/ccf-skill-forger"><img src="https://agentmods.dev/badge/skills/mikubaka88/ccfa-skills/ccf-skill-forger/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ccf-skill-forger

Your own site · 80×15
<a href="https://agentmods.dev/skills/mikubaka88/ccfa-skills/ccf-skill-forger"><img src="https://agentmods.dev/badge/skills/mikubaka88/ccfa-skills/ccf-skill-forger.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,374 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 6 Sept 2026
  • Snyk pass 6 Sept 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 19
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Rogue Agent · line 29
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.01374
Opus 5 $0.00028 $0.00687
Sonnet 5 $0.00011 $0.00275
Haiku 4.5 $0.00006 $0.00137

Measured 4d ago against content hash 16b3a275469d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ccf-skill-forger scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

ccf-skill-forger/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CCF Skill Forger

Invocation Controls

CCFA Handoff Mode: PARTIAL (Recommended). Follow metadata.ccf_skill_controls.handoff_question_mode and ../ccf-common/references/handoff-modes.md when maintaining the CCFA skill family.

When maintaining the CCFA skill family, preserve metadata.ccf_skill_controls in each SKILL.md. Do not add sibling-skill transitions without checking ../ccf-common/references/routing.md, ../ccf-common/references/task-modes.md, ../ccf-common/references/handoff-modes.md, and the denylist-respecting fallback.

If the user disables a skill or asks for writing-only behavior, encode that boundary directly in the edited skill instructions. Do not weaken idea-scope protection in writing skills unless the user explicitly requests that policy change.

When adding sources, update ../ccf-common/references/source-registry.yaml instead of duplicating URL lists in sibling skills. When adding browsing or evidence rules, keep them aligned with ../ccf-common/references/privacy-and-evidence.md.

Never commit machine-specific absolute paths, usernames, expanded home directories, or private local directory names into skills, README files, source registries, diagrams, examples, scripts, or command snippets. Use $CODEX_HOME, $HOME, repo-relative paths, or placeholders that do not identify the user or machine.

Core Rule

Build skills as compact operational guidance for another Codex session. Keep SKILL.md focused on trigger-relevant workflow, decisions, and resource navigation. Put detailed examples, checklists, schemas, policy text, or long instructions in references/ and load them only when needed. This skill also owns CCFA documentation SVG diagrams; do not create a separate runtime drawing skill for repository architecture or workflow diagrams.

Workflow

  1. Clarify the goal with concrete examples. If the user's intent is clear, proceed with reasonable assumptions. Ask only for missing information that changes the skill's scope, location, or required assets.
  2. Choose a skill name and destination. Use lowercase letters, digits, and hyphens only; keep names under 64 characters; check for conflicts in the target skills directory. Default to $CODEX_HOME/skills; if unset, use ~/.codex/skills.
  3. Decide the resource shape:
    • Use only SKILL.md for short, stable procedural guidance.
    • Add references/ for detailed documentation that Codex should read selectively.
    • Add scripts/ only for repeatable deterministic operations or fragile command sequences.
    • Add assets/ only for templates, images, boilerplate, or other files used in final outputs.
  4. Initialize the skill when creating from scratch. Prefer the local skill-creator initializer if available:

Read the full file on GitHub · 68 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago Changed 16b3a275469d
  2. 5d ago Changed · +4 lines · -21 tokens per session b8b24d932659
  3. 11d ago First seen · 64 lines · 78 tokens per session scan A f8e5777976a8

Subscribe to this mod's changes

ccf-skill-forger is a skill published in the GitHub repository mikubaka88/CCFA-Skills (2,395 stars, last pushed 5d ago), licensed MIT. It adds 57 tokens to every session and 1,374 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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